Originally Posted by vinzer

sefann,

I assume you have X5 E70 and you was originally having MASK (small screen, not as wide as navigation one). Now you bought CCC navigation which comes in two units (wide screen + main ccc module with two CD/DVD slots on it).
You will need the following parts:
1. LVDS Cable to connect dispaly and CCC unit. BMW part number 61129195760
2. Plastic trim for the dash board in the middle. BMW part number 51456967469

The plastic trim is 100% needed. LVDS cable is needed to simplify the things however if you do not want to buy it - just use existed one. The connector for the dispaly will fit the new display. The connector for the unit will also fit the new CCC unit but you will have to cut plastic limiter on the connector. You will see it once you star to connect it.

There is also small FAN attached to the back of the CCC unit. You will have to make some small wiring there in order to let it work. I will try to find some wiring diagram how to connect that fan. I simply do not remeber that by heart. But it is not vital for the short tests, which can be done even without the fan. But just short tests.

Now once everything is connected you need to code your CCC unit and change vehicle order (VO). This can be done at the dealer or by using cable and software. Patryk - the name of the guy from the E90 board - he probably may help you with the coding. But you will have to get the cable first or maybe he can ship you one for the time of coding. You can not buy this cable anywhere at the BMW dealer.

It is not super difficult to code your car but you need to fully understand what you doing.
Do not hesitate to ask me a questions if needed.
vinzer